Four Fours/92
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Puzzle
Using exactly $4$ instances of the number $4$, the task is to write an expression for $92$, using whatever arithmetical operations you consider necessary.
Solutions
Solution $1$
- $92 = 4! \times 4 - \sqrt 4 - \sqrt 4$
Solution $2$
- $92 = \sqrt 4 \times \paren {4! \times \sqrt 4 - \sqrt 4}$
Solution $3$
- $92 = 4 \times \paren {4! - \dfrac 4 4}$